Re: 4.9.0-rc6+ boot problem

[Kui Zhang]

Looks like my boot issue might be kvm related. System boots fine with
CONFIG_KVM=m



--- .config 2016-11-29 02:41:24.753930839 -0800
+++ .config.working 2016-11-29 02:41:11.029065291 -0800
@@ -3544,7 +3544,7 @@
 # CONFIG_IMG_ASCII_LCD is not set
 # CONFIG_UIO is not set
 # CONFIG_VFIO is not set
-CONFIG_IRQ_BYPASS_MANAGER=y
+CONFIG_IRQ_BYPASS_MANAGER=m
 # CONFIG_VIRT_DRIVERS is not set

 #
@@ -4553,7 +4553,7 @@
 CONFIG_KVM_COMPAT=y
 CONFIG_HAVE_KVM_IRQ_BYPASS=y
 CONFIG_VIRTUALIZATION=y
-CONFIG_KVM=y
+CONFIG_KVM=m
 CONFIG_KVM_INTEL=m
 # CONFIG_KVM_AMD is not set
 # CONFIG_KVM_MMU_AUDIT is not set

On Sun, Nov 27, 2016 at 2:23 PM, Kui Zhang <kuizhang@xxxxxxxxx> wrote:
> Hello,
>
> I am having problem booting 4.9.0-rc6+ on my laptop.
>
> 4.9.0-rc5+ works, so not likely hardware issues.
>
>
> Ubuntu Zesty Zapus
>
> ###
> gcc-6 with
>
> CONFIG_PCI_QUIRKS=y
> CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
>
> After grub, screen turns off. No pre modeset messages. Then system
> reboot itself.
>
> When
>
> CONFIG_PCI_QUIRKS not set
> CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS not set
>
>
> System would boot up to: "Clocksource: Switched to clocksource hpet". then loop
>
> '''
> Could not create tracefs '' directory
> Could not create directory for event
>  '''
>
> ###
> gcc-4.9 system would panic with above settings on.
>
> With them off, setting would boot to login prompt. Only one working terminal.
>
> Login works.
> dmesg works
>
> lsmod hangs
>
>
>
> [    8.436647] BUG: unable to handle kernel paging request at 0000000016000000
> [    8.437448] IP: [<ffffffff974dea56>] strcmp+0x16/0x30
> [    8.438224] PGD 0
>
> [    8.438992] Oops: 0000 [#1] SMP
> [    8.439750] Modules linked in:
> [    8.440506] CPU: 6 PID: 430 Comm: systemd-udevd Not tainted 4.9.0-rc6+ #14
> [    8.441266] Hardware name: Notebook
> P15SM-A/SM1-A                    /P15SM-A/SM1-A                    ,
> BIOS 4.6.5 04/20/2015
> [    8.442239] task: ffffa3d3a436e3c0 task.stack: ffffba3641604000
> [    8.443033] RIP: 0010:[<ffffffff974dea56>]  [<ffffffff974dea56>]
> strcmp+0x16/0x30
> [    8.443828] RSP: 0018:ffffba3641607bf0  EFLAGS: 00010202
> [    8.444603] RAX: 000000000000006d RBX: ffffffff97fc33c0 RCX: 0000000000000a1f
> [    8.445382] RDX: 000000000000143e RSI: 0000000016000001 RDI: ffffba3641669fe7
> [    8.446149] RBP: ffffba3641607bf0 R08: ffffffff9716cb90 R09: ffffffffc0409000
> [    8.446917] R10: 00003fffffe00000 R11: 0000000000002000 R12: 0000000000000a1f
> [    8.447683] R13: 0000000000000010 R14: 000000000000143e R15: 0000000000000000
> [    8.448446] FS:  00007f4830a4c8c0(0000) GS:ffffa3d3afb80000(0000)
> knlGS:0000000000000000
> [    8.449202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    8.449957] CR2: 0000000016000000 CR3: 0000000224a12000 CR4: 00000000001406e0
> [    8.450710] Stack:
> [    8.451457]  ffffba3641607c00 ffffffff9716cba2 ffffba3641607c50
> ffffffff974ebede
> [    8.452232]  ffffffff9716cb90 ffffffff97fb91d0 ffffba3641669fe6
> ffffba3641607cb8
> [    8.453005]  0000000000000000 ffffffff97c2e840 ffffba3641687f00
> ffffba3641607e80
> [    8.453779] Call Trace:
> [    8.454608]  [<ffffffff9716cba2>] cmp_name+0x12/0x20
> [    8.455621]  [<ffffffff974ebede>] bsearch+0x5e/0x90
> [    8.456656]  [<ffffffff9716cb90>] ? unregister_module_notifier+0x20/0x20
> [    8.457444]  [<ffffffff9716cd2b>] find_symbol_in_section+0x3b/0xf0
> [    8.458228]  [<ffffffff9716ccf0>] ? mod_find_symname+0x70/0x70
> [    8.459018]  [<ffffffff9716d8d6>] each_symbol_section+0x26/0x50
> [    8.459801]  [<ffffffff9716d9d6>] find_symbol+0x36/0xa0
> [    8.460570]  [<ffffffff9716cbf8>] ? find_sec+0x48/0x80
> [    8.461553]  [<ffffffff9716e82a>] resolve_symbol.isra.61+0x4a/0xb0
> [    8.461556]  [<ffffffff9716df36>] ? get_modinfo.isra.56+0x46/0xa0
> [    8.461558]  [<ffffffff9716fdb7>] load_module+0xc57/0x2700
> [    8.461560]  [<ffffffff97480dc4>] ? ima_post_read_file+0x74/0x90
> [    8.461563]  [<ffffffff9743e23b>] ? security_kernel_post_read_file+0x6b/0x80
> [    8.461566]  [<ffffffff9727c7f2>] ? kernel_read_file+0x172/0x190
> [    8.461568]  [<ffffffff97171a56>] SYSC_finit_module+0x96/0xd0
> [    8.461569]  [<ffffffff97171aae>] SyS_finit_module+0xe/0x10
> [    8.461571]  [<ffffffff97002b1a>] do_syscall_64+0x6a/0x220
> [    8.461574]  [<ffffffff97a0a08a>] entry_SYSCALL64_slow_path+0x25/0x25
> [    8.461591] Code: 01 0f b6 4e ff 48 83 c2 01 84 c9 88 4a ff 75 ed
> 5d c3 0f 1f 00 55 48 89 e5 eb 04 84 c0 74 18 48 83 c7 01 48 83 c6 01
> 0f b6 47 ff <3a> 46 ff 74 eb 19 c0 5d 83 c8 01 c3 31 c0 5d c3 66 2e 0f
> 1f 84
> [    8.461593] RIP  [<ffffffff974dea56>] strcmp+0x16/0x30
> [    8.461594]  RSP <ffffba3641607bf0>
> [    8.461594] CR2: 0000000016000000
> [    8.461605] ---[ end trace 470acb4c22b46ca8 ]---
>
>
> [    7.367754] BUG: unable to handle kernel paging request at 000000002c000000
> [    7.368663] IP: [<ffffffffad4dddc6>] strcmp+0x16/0x30
> [    7.369408] PGD 0
>
> [    7.370111] Oops: 0000 [#1] SMP
> [    7.370805] Modules linked in:
> [    7.371504] CPU: 0 PID: 360 Comm: systemd-modules Tainted: G
>    O    4.9.0-rc5 #17
> [    7.372211] Hardware name: Notebook
> P15SM-A/SM1-A                    /P15SM-A/SM1-A                    ,
> BIOS 4.6.5 04/20/2015
> [    7.372963] task: ffff8f02659b4740 task.stack: ffffa9de81274000
> [    7.373687] RIP: 0010:[<ffffffffad4dddc6>]  [<ffffffffad4dddc6>]
> strcmp+0x16/0x30
> [    7.374444] RSP: 0018:ffffa9de81277c20  EFLAGS: 00010202
> [    7.375169] RAX: 0000000000000070 RBX: ffffffffadfc3390 RCX: 0000000000000a1e
> [    7.375899] RDX: 000000000000143d RSI: 000000002c000001 RDI: ffffa9de811f2da1
> [    7.376633] RBP: ffffa9de81277c20 R08: ffffffffad16c550 R09: ffffffffc03ca000
> [    7.377364] R10: 00003fffffe00000 R11: 0000000000002000 R12: 0000000000000a1e
> [    7.378097] R13: 0000000000000010 R14: 000000000000143d R15: 0000000000000000
> [    7.378832] FS:  00007fa5291ef8c0(0000) GS:ffff8f026fa00000(0000)
> knlGS:0000000000000000
> [    7.379591] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    7.380327] CR2: 000000002c000000 CR3: 00000002228f0000 CR4: 00000000001406f0
> [    7.381073] Stack:
> [    7.381796]  ffffa9de81277c30 ffffffffad16c562 ffffa9de81277c80
> ffffffffad4eb23e
> [    7.382557]  ffffffffad16c550 ffffffffadfb91b0 ffffa9de811f2da0
> ffffa9de81277ce8
> [    7.383275]  0000000000000000 ffffffffadc2e7c0 ffffa9de811f46b0
> ffffa9de81277eb0
> [    7.383986] Call Trace:
> [    7.384697]  [<ffffffffad16c562>] cmp_name+0x12/0x20
> [    7.385403]  [<ffffffffad4eb23e>] bsearch+0x5e/0x90
> [    7.386188]  [<ffffffffad16c550>] ? unregister_module_notifier+0x20/0x20
> [    7.387304]  [<ffffffffad16c6eb>] find_symbol_in_section+0x3b/0xf0
> [    7.388407]  [<ffffffffad16c6b0>] ? mod_find_symname+0x70/0x70
> [    7.389504]  [<ffffffffad16d296>] each_symbol_section+0x26/0x50
> [    7.390590]  [<ffffffffad16d396>] find_symbol+0x36/0xa0
> [    7.391662]  [<ffffffffad16c5b8>] ? find_sec+0x48/0x80
> [    7.392734]  [<ffffffffad16e1ea>] resolve_symbol.isra.61+0x4a/0xb0
> [    7.393804]  [<ffffffffad16d8f6>] ? get_modinfo.isra.56+0x46/0xa0
> [    7.394880]  [<ffffffffad16f777>] load_module+0xc57/0x2700
> [    7.395948]  [<ffffffffad4800b4>] ? ima_post_read_file+0x74/0x90
> [    7.397015]  [<ffffffffad43d6cb>] ? security_kernel_post_read_file+0x6b/0x80
> [    7.398070]  [<ffffffffad27bfd2>] ? kernel_read_file+0x172/0x190
> [    7.399118]  [<ffffffffad171416>] SYSC_finit_module+0x96/0xd0
> [    7.400169]  [<ffffffffad17146e>] SyS_finit_module+0xe/0x10
> [    7.401205]  [<ffffffffada08b64>] entry_SYSCALL_64_fastpath+0x17/0x98
> [    7.402242] Code: 01 0f b6 4e ff 48 83 c2 01 84 c9 88 4a ff 75 ed
> 5d c3 0f 1f 00 55 48 89 e5 eb 04 84 c0 74 18 48 83 c7 01 48 83 c6 01
> 0f b6 47 ff <3a> 46 ff 74 eb 19 c0 5d 83 c8 01 c3 31 c0 5d c3 66 2e 0f
> 1f 84
> [    7.403491] RIP  [<ffffffffad4dddc6>] strcmp+0x16/0x30
> [    7.404605]  RSP <ffffa9de81277c20>
> [    7.405706] CR2: 000000002c000000
> [    7.406815] ---[ end trace 5658e0e68fb01f05 ]---
>
>
> Thanks
> Kui.Z